This was the stunt driver’s first film as a stunt performer, according to Deadline, which reports that she was a motorcross expert and was not wearing a helmet during the scene because her character does not wear a helmet.

“We are deeply saddened by the accident that occurred on the set of Deadpool 2 this morning,” 20th Century Fox says in a statement. “Our hearts and prayers are with the family, friends and colleagues of our crew member during this difficult time.”

The Vancouver Sun reports that the accident occurred just after 8 a.m. on Monday. Witnesses tell the outlet that the woman lost control of her bike during a stunt, jumped a curb and crashed through a plate-glass window at Shaw Tower. She was reportedly treated by ambulance personnel but police say she died at the scene.

According to Metro News, the stunt driver narrowly missed hitting two pedestrians when she lost control of the bike.